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IBM Cloud Object Storage vs Nutanix Unified Storage (NUS) comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Nov 4, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Pure Storage FlashBlade
Sponsored
Ranking in File and Object Storage
8th
Average Rating
8.8
Reviews Sentiment
7.5
Number of Reviews
39
Ranking in other categories
All-Flash Storage (12th), Software Defined Storage (SDS) (8th)
IBM Cloud Object Storage
Ranking in File and Object Storage
12th
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
8
Ranking in other categories
No ranking in other categories
Nutanix Unified Storage (NUS)
Ranking in File and Object Storage
3rd
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
114
Ranking in other categories
All-Flash Storage (6th), Software Defined Storage (SDS) (2nd), Public Cloud Storage Services (5th), NVMe All-Flash Storage Arrays (4th)
 

Mindshare comparison

As of January 2026, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.3%, down from 6.0% compared to the previous year. The mindshare of IBM Cloud Object Storage is 1.1%, down from 1.2% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 2.6%, down from 2.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
File and Object Storage Market Share Distribution
ProductMarket Share (%)
Nutanix Unified Storage (NUS)2.6%
Pure Storage FlashBlade5.3%
IBM Cloud Object Storage1.1%
Other91.0%
File and Object Storage
 

Featured Reviews

MikaelHellström - PeerSpot reviewer
IT Manager at Regin Dalarna
Has handled backup storage needs reliably and supports seamless upgrades
In environments requiring high throughput and low latency, Pure Storage FlashBlade provides high throughput and normal latency, but we do not have any application that requires low latency right now, so the latency of three to five milliseconds is considered kind of high. Pure Storage FlashBlade's ability to integrate with enterprise applications is not important for us, as we only want to present an S3 bucket for our backup, which we have done, and it works very fast. We use the Purity software's data reduction techniques; we have a backup software that compresses everything before sending it to the S3 bucket, achieving a data reduction of 1.1 to one. I would recommend Pure Storage FlashBlade to other companies because it's a very fast and scalable solution for anyone who needs it. On a scale of 1-10, I rate this solution an 8.
reviewer2384904 - PeerSpot reviewer
Account Technology Specialist at a tech vendor with 10,001+ employees
Enables seamless data replication and supports comprehensive data analytics workflows
The capability to replicate data in different locations is valuable since it enables customers to have a cluster over various sites. Also, important is the capability to provide RESTful APIs for custom connectors. In terms of security, I advise customers to rotate access keys to enhance protection. Additionally, scalability is effortless as you can add nodes or expand the license.
Amarnath Charugundla - PeerSpot reviewer
System Engineer at Tata Consultancy
Unified management and cost-effectiveness lead to positive experiences and future savings
Improvement is necessary wherein the memory or storage should not breach 90%, because if breached, it becomes unmanageable. We have to set alerts or CPU triggering for 95% for the first warning. Other activities on nodes or file systems should be properly maintained. We must monitor the dashboard for P1, P2 alerts in the Nutanix Unified Storage (NUS) file share system including SMB, NFS, objects, and blocks. Attention should be maintained for any alerts such as CPU, memory, and RAM alerts, as exceeding these creates issues within teams. If triggered to 95% and forgotten, it crosses the SLA breach, causing disturbances to application, web, and platform teams. Continuous monitoring on the Nutanix dashboard is essential. Even a highly experienced person in Nutanix Unified Storage (NUS) cannot provide a 10 rating out of 10 because it is a vast system. I would rate it eight from my perspective.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The most valuable features of this solution are the rewrite speed and the nonstop services."
"It helps simplify our storage, because the user interface is very simple and the installation is easy."
"What I like best about Pure Storage FlashBlade is its object storage functionality, plus it has fast underlying hardware. Pure Storage FlashBlade is also very stable. I find its stability one of its valuable features."
"The performance of FlashBlade is excellent. It does not necessarily leverage the SOS API that some of the newer products leverage, but I found its speed pretty much on par and comparable. It is fast, and it does what it is supposed to do."
"It is very easy to use, and it is very fast."
"The ease of deployment and management has helped us simplify our storage. We also do not have to worry about capacity management as much. A lot of these things are native to Pure Storage."
"It has absolutely simplified our storage because the dashboards on the consoles show a clear understanding of where you are, and it is also very easy to provision. This been a big help for our teams."
"The initial setup is pretty quick."
"The integration itself is pretty easy. The access appliances create the connection between both environments."
"The standout feature of IBM Cloud Object Storage is its top-notch security, making it ideal for sensitive applications like mobile financial transactions."
"The capability to replicate data in different locations is valuable since it enables customers to have a cluster over various sites."
"IBM has the most number of additional services, this is the main advantage."
"One of Cloud Object Storage's best features is infinite capacity. This is one of the main advantages if you don't want to use your own storage. You also have the ability to write only, write once, and read many. It's like tape storage but software-based. This feature is essential for financial institutions that require that kind of protection if you write backup or data there."
"Overall, I rate IBM Cloud Object Storage a ten out of ten."
"IBM Cloud Object Storage integrates well."
"The most valuable feature I like is when you connect it via CLI plug-in...It is a stable solution."
"The reliability and availability are the most valuable features. Reliability is important because it can run my workloads. I need to be able to take advantage of the VMs that are executing on the storage. It has to be reliable. It's also important to have the storage available for scaling VMs on demand."
"I rate Nutanix Unified Storage (NUS) nine point five to ten, as it's easy to manage, scalable, has great performance, and includes advanced features."
"The most valuable feature of Nutanix Unified Storage is redundancy."
"Since migrating to Nutanix, we have not lost any data despite node failures due to its high availability and redundancy factor."
"I strongly recommend Nutanix Unified Storage (NUS) to all users."
"I appreciate its storage licensing model, as it offers flexibility."
"Nutanix has excellent product documentation available on their portals, written in simple, easy-to-understand language."
"Nutanix Unified Storage is a simple, user-friendly, and stable solution."
 

Cons

"Recently, while upgrading the version code, one of the controllers failed. Replacing the controller took between 14 to 20 days."
"On our dedupe during our initial buy, we were expecting a number a little higher like 4x. However, we are getting about 3.6. While it is close enough, it doesn't quite hit the numbers. So, this has been a challenge."
"The documentational aspect of FlashBlade needs improvement."
"An area for improvement in Pure Storage FlashBlade is its price. It could be reduced. The technical support for Pure Storage FlashBlade also needs improvement. It used to be good, with more experienced engineers. Nowadays, it isn't, and it takes longer for support to solve problems."
"The solution is expensive."
"We haven't been able to use much of the cloud area of Pure Storage. We have a storage server and it would be better if it could integrate with other cloud features of this solution."
"I have not seen ROI."
"Commvault has mainly driven the Analytics, providing data and reports. However, the product has room for improvement, especially regarding storage analytics. Upgrading firmware has caused issues, requiring feature disabling to revert to traditional backups. The firmware upgrades sometimes affect Commvault backups."
"If I had to choose one area, it would be making the consoles more intuitive would be helpful. Sometimes, they can be a little complicated if you're not familiar with them."
"One area where IBM Cloud Object Storage could potentially improve is in modernizing its underlying codebase."
"Room for improvement depends on customer needs. Some customers prefer pure Object Storage using the S3 protocol, while others use a gateway in front of the storage grid to enable CIFS or NFS."
"Sometimes technical support lacks a comprehensive understanding of the entire solution, only focusing on the product they support."
"The performance could be better. It isn't bad, but everything is network-based, so you have a performance penalty on the network. You can never achieve the same performance as hardware. That's the disadvantage of cloud storage solutions in general. Cloud performance is one of the main issues clients have."
"IBM Cloud storage is not cheap, but it could be."
"IBM has limited cloud storage."
"One improvement could be incorporating a feature similar to Dropbox's version history. This would allow users to track modifications made to files over time, which is particularly important for maintaining a record of changes. While the free version might not include this feature, it could be included in the paid version to provide added value to clients. Additionally, having a version history feature that allows users to access modifications made to files over the past three months could be beneficial."
"The graphical user interfaces could benefit from more attention to detail."
"While the stability of Nutanix Unified Storage (NUS) is good, the need for manual intervention can be a drawback."
"There is an occasional language barrier between some of the technicians, which can be challenging; however, that doesn't prevent us from being assisted, as they can remote in and use Pulse to view our cluster and gather logs and reports."
"It could be more user-friendly."
"The problem is that we need to invest a lot of money to get AI, and therefore, we are not going to purchase AI right now."
"What's missing in Nutanix Files Storage is the support for multiple intranets or VLANs on the same file from different networks and network devices."
"Nutanix Unified Storage (NUS) can be improved in the area of big data workloads, as we still need to improve performance there."
"Pain points are just in the management and understanding of how the functions work. As far as updating and day-to-day operations, if my staff is properly trained and we have those proper training sessions, we don't have that many issues. There can be more educational resources from their side."
 

Pricing and Cost Advice

"The product is very expensive."
"Our licensing is renewed annually."
"Licensing fees are paid yearly."
"I understand that it is competitively priced compared to other brands."
"Support is a separate line item. Support is a different cost, but whatever your support is now, that's what you're going to pay forever. If your support's $100 today, six years from now it's $100. It doesn't fluctuate unless you upgrade it, or change it, etc."
"We used a reseller for the purchase."
"I rate the tool's pricing a seven to eight out of ten."
"The price is a little high."
"Like most cloud providers, IBM likely charges based on storage capacity, typically per gigabyte or terabyte. Their pricing is competitive when compared to AWS or Microsoft."
"Pricing is not cheap."
"You have the option of a monthly or yearly license. Most customers choose the monthly option. I understand what you would like to say. IBM also lets you choose among four types of Cloud Object Storage. The difference is usage, performance, etc. Of course, high-performance storage is more expensive, while low-performance storage is for cold data, and it's really cheap."
"IBM Cloud is cheaper than AWS. If you want to scale your cloud infrastructure, it can be bought at almost the same price."
"Licensing-wise, I have no complaints. Their license is pretty simple and easy. It gives us everything we need, so I have no complaints about licensing."
"The pricing is a bit too high."
"I hope that it will stay the way it is. We have seen the changes in VMware and what happened to them. I have heard that Nutanix will raise the prices, but I hope that they will not do that."
"Nutanix is very competitive."
"I find Nutanix Files Storage competitively priced, even its feature set. Its price is seven out of ten."
"My company is in Brazil, and making the payments in dollars is tough for our organization."
"The pricing is fair."
"The licensing model the tool has is cheaper than an HCI storage solution."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Manufacturing Company
10%
Computer Software Company
10%
Government
7%
Financial Services Firm
25%
Computer Software Company
16%
Government
7%
University
7%
Computer Software Company
21%
Manufacturing Company
12%
Educational Organization
6%
Financial Services Firm
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise21
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise2
Large Enterprise4
By reviewers
Company SizeCount
Small Business26
Midsize Enterprise30
Large Enterprise64
 

Questions from the Community

What do you like most about Pure Storage FlashBlade?
The tool's most valuable feature is its fast performance, especially in handling snapshots. It helps during power out...
What is your experience regarding pricing and costs for Pure Storage FlashBlade?
Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making...
What needs improvement with Pure Storage FlashBlade?
In my opinion, one way Pure Storage FlashBlade can be improved is by having more compatibility between the FlashArray...
What do you like most about IBM Cloud Object Storage?
The integration itself is pretty easy. The access appliances create the connection between both environments.
What needs improvement with IBM Cloud Object Storage?
The interface can feel clunky and outdated compared to AWS S3 or Azure Blob Storage. While scalable, latency can be...
What do you like most about Nutanix Unified Storage?
Nutanix has excellent product documentation available on their portals, written in simple, easy-to-understand language.
What is your experience regarding pricing and costs for Nutanix Unified Storage?
It is very cost-effective compared to the traditional environment. With new hardware, it's a long-term investment but...
What needs improvement with Nutanix Unified Storage?
To improve Nutanix Unified Storage (NUS), cost is always an issue for every company, especially when we talk about la...
 

Also Known As

No data available
Cleversafe
Nutanix Files Storage, Nutanix Volumes Block Storage, Nutanix Objects Storage
 

Overview

 

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
Bitly, Dreamstime, Prime Research
JetBlue, International Speedway Corporation, Volkswagen SAIC, Brighton and Hove City Council, Foresters Financial, Janus International Group, Cloud Comrade, Serco
Find out what your peers are saying about IBM Cloud Object Storage vs. Nutanix Unified Storage (NUS) and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.